Stator structure for dynamo-electric machines



M. E. GYSEL Feb. 27, 1928.

Filed Dec. 15, 1917 'II/III/IIIA 7 if iNVENTOR N015 Gyse/ BY WITNESSES:

ATTORNEY Patented Feb. 27, 1923.

UNITED STATES PATENT OFFMIE'.

MAX E. GYSEL, OF WILKINSBURG, PENNS ELECTRIC AND MANUFACTURING COMPA YLVANIA, ASSIGNOR TO WESTINGHOUSE NY, A CORPORATION OF PENNSYLVANIA.

STATOR STRUCTURE FOR DYNAMO-ELECTRIC MACHINES.

Application filed December 13 1917. Serial No. 207,010.

To al l'whom it may concern: y 7 Be it known thatI, MAX E. GYsE a c1t1- I zen of the Republic of Switzerland, and a in the county 03f. ennsylvania, have resident of Wilkinsburg' Allegheny and, State of invented a new and useful Im rovement in Stator Structures for Dynamoleetric Machines, of which the following is a specification.

Mg invention relates to stator f-structures" for name-electric machines, aud t has for" its objectto provide apparatus'of th'e character designatedrwhich shallbe simple and inexpensive in manufacture, rugged in con 'struction and well adapted forventilation, Asaid structure further being particularly adapted for inspection and repair.

In the, accompanyin'gdrawing, Fig. 1 is a side view, partially in section and partially in elevation, of aYdynamo-ele'ctric machine embodying my invention; and Fig. 2 is a transverse sectional viewof the stator of the machineshown in Fig. '1.

Small dynamo-electric machines usually embody holloxv-cylindrical frame members. within which laminatedjcore members are mounted. Various means have been pro osed for so mounting the core members within the frame members as to permit of ready insertion andj removal and to ensure accurate and secure positioning. i

In accordance with I .form a cylindricalframemember by disposing two cylindrical members inend-toend relation, vsaid membersbeing provided with o posing shoulders adjacent their abutting fgces, and- I further provide a core member having projections which extend between said shoulders. By 'means ofbolts, the cylindrical members are secured together and firm positioning of said shoulders upon said projections is; secured.

I preferably form the 'greaterportionlof the core member of circular laminations but I provide a small number of the laminations, at the central portion thereof, of polygonal external contour to be engaged by the show:- mentioned shoulders. The circularlaminations are preferably somewhat smaller in di- :1 meter than the interior of the frame, whereby a ventilating space is provided between the core and the frame member. Referring to the drawing for a more de tailed understanding of my invention, I

large the present invention,

show a dynamo-electric machine at 3 in Fig. 1, said machine comprising a stator frame member 4, a stator core member 5 and a rotor core member 6. Any suitable wind- -'ings may be applied to the core members 5 and 6, the specific Winding employed formmg no part of the present invention.

The stator core member 5 is formed of a number of circular laminations, indicated at 77, but, at its central portion, embodies a small number of poly onal laminations 88, the corners of said polygonal ,laminations extending beyond the core member defined by the laminations 77.

The frame 4 is split transversely to the axis, as indicated at 9, and the two halves thereof are provided with opposing shoulders 1010 adjacent the abutting faces. The corners of the polygonal laminations 8-8extend between the shoulders 10-10, as indicated at 11-11, and fastening means extend through the entire stator structure as indicated at 12.

By manipulating the members 12, the two portions of the frame structure may be drawn into a.fir m engagement with each other, to preclude the admission of foreign matter to the interior of the machine frame. Furthermore, the penetration of the core member.5 by the clamping member 12 aids in firmly positioning the core member.

The laminations 7-7 are, preferably, somewhat smaller in diameter than the interior of the frame H, whereby a ventilating space is provided between the core memher and the frame and, furthermore, the ventilating spaces on the two sides of the laminations 8 communicate through the openings provided at 13.

It will be obvious that, with the structure disclosed, the removal of the members 1212 permits the ready separation of the two halves of the frame member 4- and the complete exposure of the stator core member 5 for inspection, cleaning and repair.

While I have shown my invention in its preferred form. it will be obvious to those skilled in the art that it is susceptible of various minor changes and modifications Without departing from the spirit thereof. and I desire, therefore, that only such limitations shall be placed thereupon are im' posed by the prior art or as are specifically set forth in the appended claims I claim as my invention: and means for clampin aid ti t 1. A. dynamo-electri'e machine'eomprising lgether td m'fiintnin saidco're' "member in a casing consisting of a 'plurality of sec- "spaiied relntion \vi'tli'respecf thereto to protions disposed in end-to-end abutting relavide a ventilating passage between said ore tion with respect. to each other, a laminated 1 member andsaid casing. core mem er disposed within said casing 7. A'Tlynamo-electricmachine comprising and provided with a relatively narrow cena casing consisting of a plurality of sertrallv disposed Flange whiz-his adapted to tions'fiis'posed 'in"end 'to-eud abutting relavxtoiiil outwardly from the main body por tion and in axial nlinement with respect to tion of mid (20m and hetivecn said sections, 'zic'h othei'i'saide'ctions being provided with and ltitzzlls' for clamping the laminations of opposing shoulders adjaceutto their abutthe'core i'ugttliir and fol-"drawing said secting edges. of lai'i'i'iiiated' -o"ifl;.mbr disportion of said r-ore 't lierebetiveen. tail) 'o'f the la' niiiat ioiis"thereoffiixtending 2. dynamo electric machine eom prising riutu'ardl'y from'fiheihodj" p'ortionof' the cure easin eonsisLing of a plurality of sec 'mi nlfiiitii"idvi deiiigaigiralitj ofindinl mtiuns disposed in end-t-o'end ii butting rela jeet-ioiisf-zifdantedio l 't-lamp'ed hetiive'n said tinu. a wire member disposed withiii saidshoi'ildrslfli'laliiiu'ationsffipsairl core'memraisinand provided with :i. relatively nai l:ei*s"\\hi'chai'iltitdii'E-cthi iigagr d'liy said rou projection adapted to ei teiidbetiveen shoulders being spaced from said casing to A dynamo-electric inachin'e tomii'risingf "8.lji'a'jdii'iiiiifioielectt'io'nlliehifie, the coma casing consisting of a, iiluralitjfiof sec-tion a:' liii i'ationzfji rithfi, eylindric'zil'fi'm'ti iidthprisdisposed orid-bo-end abutting relation, ilig hid oylii'idrib'rll"iiimbeij's' disposed in laminated ,i'iimher dis iosed within said ens "igliiie'mii iitl 11ml in" end tb -eildabutting ing certain of the lamiiiations (if solid core ivlzit-iiiii. sa'ld meiiibisbeihg ii'rdi idd with A body portion thereof andiivhich form' a faces, of'a'jlaii ina;

"cent 1 to their aliiitting edges a core nieinbei fliijia't-i with 'jfinflficail 'frame'comprisdrsposed w thin said frgurie and hziving Q and meaiis for cla'r'nping said "see'tio'ris to opposingshoulders gidjacentfliitheir'abutr gather.

a egsmgponsisting of aplural ty 0f SBQU01:1S dl SPOS8( :Igitif' afi gfis ofisaiti cormember disposed in endLto-end shutting relation and earners {of said i 'liifi'ii'fi'fiiifiii'tiifiohiidirififthi said tions lasing provided with 'app iagshoui-f g'jr I'nembeif dfjprojet-infhtwee'n said ders adjacent to their abutting: ed es, anjd'ifieigijsiql 'elampili'kaid cylaminated core. member; disposed wit-hm said" fliri'dric'iif'megdberg; tzi thjejand-,fdf simulgasing and in spacd relation w re zf caigous fdam ingaia pdl goiidl' laminatliereto. Q rtainof the: Ia minati ns of said"'tioiis' be'bii'eefi'soidfilioiifde' ifihgrelijfsaid core mem'o r extendin 'g outiw arcl l y'" froih the core member is"'15tisi' i 0nd with respeet to shoulders. and means for elanipiiig said see said'eoi'ii'iinemheii'beihEsiiliaced 'fro'ri'i' said tions together. iiifraiiid'idliembifli l itilatiii'g space is pm- 6. A dynamo-electric iniiehin eoniprisin'g''flvided. a casing consisting of a. plurality of seetion s l' 10. In Hffdyniiiifii eleetrie hiiiel'iine. the disposed in end-to-end ahutting relation'foinbiiiatioii fwith jailtij' liiidrical f'raine comwith respect to each othexysziid sect-ions be} "i risir' f "tiid'iijdjiidrical Ineiii'bers disposed in provided with opposing shoulders ad; ili'pfiial' ziliiie nientfand in'end-to-oud abut-- inse-2:! in the r shutting erlgesl n (:Or mom iiiig'r e liltiijju' said iri'i'mbis'beii'lg provided her Ii! within said casing :a n d pro- \.'l lfi l oii'f 'osiii'g shtilildei-s adjacent to their rifled \riih reirtivvly narrow rih nortions itti'nfifades, o'fi la'riiinate'd rnre Fttl'luilllu adapted in rxhrsd a'wtween said shoulders, illsjiosod ithinsaid fi':'inie,r;ertaiu centrally disposed laminations of said core member being polygonal in shape, the corners of said polygonal laminations protruding from said core member and projecting bet-ween said shoulders, and threaded members extending through said cylindrical members and sad core member: whereby said cylindrical members may be clamped together and said polygonal laminatione may simultaneolndy l-e clamped between said shoulders, for positionin said rore member relatively to said frame.

11. A dynamo-electrie machine comprising' a casing, consisting of a plurality ot sections arranged in abutting relation with respect to each other, a core member disposed within said casing and entirely enclosed thereby, said core member being provided with a plurality oi rclatirel narrow radially projecting: flanges adapted to be clamped between said sections to maintain said core in spared re ation with respect to said casing.

12. In a dynamo-electric machine, the combination of a casing comprising a pinrality of sections arranged in abutting relation, and a core member ineloscd by said casing having a plurality ot projecting portions held between said sections whereby the main portion of said core is maintained in spaced relation with respect to said casing.

13. A dynamoelectric machine comprising a casing: consisting: of a plurality of sections arranged in end-to-end abutting relation with respect to each other. said sections being provided with annular reduced portions adjacent to their abutting edges, and a core member disposed within said casing and in spaced relation with respect thereto and hav in; an outwardly extending portion 01 greater diameter than the main body por tion thereof. which is adapted to extend into said reduced portions and be clamped between said sections to maintain said body portion in spaced relation with respect to said casing.

14. A dynamo-electric machine compris ing a casing consisting of a plurality of sections arranged in end-to-end abutting rela tion with respect to each other, the inner peripheries of said sections being provided with reduced portions adjacent to their abutting edges and which are adapted to co-operate to provide an annular channel when said sections are secured together, a core member disposed within said casing and having a plurality 0t radially extending ribs adapted to extend into said channel to maintain said core in spaeed relation with respect to said casing.

15. in a dynamo electric machine, the combination of a casing comprising a plurality of sections, and a core having a plurality of radial extensions which project outwardly from the main portion thereof and are held between said sections.

16. A dynamo-electric machine comprising a casing consisting: of a plurality of complementary sections adapted to be arranged in end-to-end abutting relation with respect to each other and a laminated core member disposed within said casing and which is entirely enclosed thereby, certain laminations of said core being of greater diameter than the main body portion thereof and which provide a plurality of relatively narrow ribs adapted to be clamped between said sections to maintain said core in spaced relation with respect to said casing.

In testimony whereof, I have hereunto subgcribed my name this th day of Nov.. 591

MAX E. GYSEL. 

